Try python-bugzilla api_key if stored does not work
There are multiple possible of places where working API key can be
stored. When create-fedora-review asks for API key, it stores it into
own configuration file ~/.config/create-fedora-review. But
python-bugzilla can have API key stored in own configuration file.
Retry first without API key, before asking for a new key. The key might
be already present, but in different location. Especially for bugzilla
command line users.